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hichkok12 [17]
3 years ago
8

Sophia scored 92% in a math test. if the test had 50 question how many did she get right

Mathematics
1 answer:
german3 years ago
7 0

Answer: 46

Step-by-step explanation:

percentage scored = 92

number of correct question = x

total number of questions = 50

The formula for calculating the percentage scored

= number of correct question / total number of questions x 100

That is

92 = \frac{x}{50} x \frac{100}{1}

92 = \frac{100x}{50}

cross multiplying :

100x = 92 x 50

100x = 4600

dividing through by 100 , we have

x = 46

Therefore, she got 46 questions right

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What is a perfect square 6, 10, 12, 14
vaieri [72.5K]

Answer:

None of the numbers are Perfect Square.

Step-by-step explanation:

6, 10, 12, and 14 are not <u>Perfect Square</u>, because each number are multiplied by two different numbers:

6 = 3 \times 2

10 = 5\times 2

12 = 6\times 2

14 = 7 \times 2

6 0
3 years ago
Find (f o g)(2) and (f+g)(2) when f(x)=1/x and g(x)=4x+9
Pavel [41]
I believe the answers are:
(f o g) (2)= 1/17 and (f+g) (2)= 17.5
7 0
3 years ago
The sum of an unknown and eight is twenty. What is the unknown?<br>​
Zarrin [17]

indicates subtraction

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4 0
2 years ago
Read 2 more answers
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yuradex [85]

Answer:

12x - 2

Step-by-step explanation:

Step 1: Write expression

4(3x + 2) - 6

Step 2: Distribute 4

12x + 8 - 6

Step 3: Combine like terms

12x - 2

5 0
3 years ago
4) Which expression is equivalent to 3x + 5x? X + 8 8x + 2. 8x. 2x​
____ [38]

Answer:

8x

Step-by-step explanation:

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In order to add terms, the variable part has to be exactly the same.

It's like saying 3 balls + 5 balls = 8 balls.

6 0
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